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Joists under the stairs have seen better days, to say the least
I would say that those joists are terminally fucked and would strongly advise you to replace them if I was working for you. With the amount of rot at the end it is entirely likely that moisture has travelled up the grain and could well be rotting away in the centre so if you leave it as is it is possible that you'll do all this work out a finished surface on top the subfloor and then 6 months to 6 years in the future will have to tear it all up again to replace them. It makes much more sense to get it done now even with the current cost of building material.
anything else I need to worry about here? (they are/were red engineeeing bricks)
Nope looks good. Engineering bricks will retain their strength even when submerged in a sewer 24/7.
Out of curiosity is are those joists ending on an external wall?
Bobbo-
Out of curiosity is are those joists ending on an external wall?
It’s the party wall between us and next door (we’re mid-terrace).
The photo of the efflorescence is an internal one, in fact all of the photos show only internal walls.Will absolutely 100% be replacing the rotten joists - one of the main reasons for lifting the floors as we knew there were suspect damp spots.
Have a feeling whilst there is DPC under the joists on the beams and/or dwarf walls/supporting bricks, it’s old (either slate that has cracked or some kind of bitumen that’s now brittle).
RE: the push-fit failure, it’s hard to say, the house has been empty and unheated for the past 18 months, and it’s only this one instance of this one pipe I’ve come across that’s noticably wet (and with obviously wet/damp sub-floor under its path).
As I say, re-plumb coming soon, and builder (touch wood) round on Monday to look around and quote.
edit: red is where there’s rot, probably at the ? mark too (paint flaking on wall above), but boards run under the stairs so didn’t get them up today.
yellow is where the photo of the yellowy bricks is from.
also have rot at the back between the downstairs loo and kitchen door/entrance - but not taken that side of the dining room up yet either
hvsds
Joists under the stairs have seen better days, to say the least.
Quite a few of the bricks supporting the joists have this yellowy efflorescence - I’ve been wiping it off as much as I kind, and cleaning up the sub-floor so there’s minimal/no material bridging in between things - anything else I need to worry about here? (they are/were red engineeeing bricks)